Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2026-4698

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component (important)
Back to all
CVE

CVE-2026-4698

firefox: thunderbird: JIT miscompilation in the JavaScript Engine: JIT component (important)

DOCUMENTATION: A flaw was found in Firefox and Thunderbird. The Mozilla Foundation's Security Advisory describes the following issue:

JIT miscompilation in the JavaScript Engine: JIT component 

            STATEMENT: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-
C
H
U
-

Related Resources

No items found.

References

https://access.redhat.com/security/cve/CVE-2026-4698

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0.0004%
EPSS Percentile
0.12394%
Introduced Version
0
Fix Available
0:140.9.0-1.el8_10,0:140.9.0-1.el9_7,140.9.0esr-1~deb11u1,1:140.9.0esr-1~deb11u1,140.9.0esr-1~deb12u1,1:140.9.0esr-1~deb12u1,140.9.0esr-1~deb13u1,1:140.9.0esr-1~deb13u1,0:140.9.0-1.0.1.el9_7,0:140.9.0-1.0.1.el8_10,0:140.9.0-1.amzn2.0.2,0:140.9.0-1.amzn2023.0.2,149.0-r0

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading